71214117571 has 2 divisors, whose sum is σ = 71214117572. Its totient is φ = 71214117570.

The previous prime is 71214117511. The next prime is 71214117581. The reversal of 71214117571 is 17571141217.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71214117571 - 2⁹ = 71214117059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71214117571.

It is not a weakly prime, because it can be changed into another prime (71214117511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35607058785 + 35607058786.

It is an arithmetic number, because the mean of its divisors is an integer number (35607058786).

Almost surely, 2^71214117571 is an apocalyptic number.

71214117571 is a deficient number, since it is larger than the sum of its proper divisors (1).

71214117571 is an equidigital number, since it uses as much as digits as its factorization.

71214117571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13720, while the sum is 37.

Adding to 71214117571 its reverse (17571141217), we get a palindrome (88785258788).

The spelling of 71214117571 in words is "seventy-one billion, two hundred fourteen million, one hundred seventeen thousand, five hundred seventy-one".